Tong Woei Horng's answer to Lee Meimei's Secondary 3 E Maths Singapore question.

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Tong Woei Horng
Tong Woei Horng's answer
385 answers (Tutor Details)
Alternative Method to solve 12b).My previous method uses a method taught in A.Maths.This method uses formulas and methods taught in E.Maths.Hope it helps you.
Lee Meimei
Lee Meimei
5 years ago
Thanks a lot. I have not learnt this cos formula thingy. I will ask my teacher about it. Thanks a lot for yr help.
Tong Woei Horng
Tong Woei Horng
5 years ago
You are welcome.